Composition containing ethylene/propylene/diene copolymer and polyalkylene/olefin copolymer
    6.
    发明授权
    Composition containing ethylene/propylene/diene copolymer and polyalkylene/olefin copolymer 有权
    含有乙烯/丙烯/二烯共聚物和聚亚烷基/烯烃共聚物的组合物

    公开(公告)号:US07091282B2

    公开(公告)日:2006-08-15

    申请号:US10438532

    申请日:2003-05-15

    摘要: A composition suitable for forming a sidewall for a tire includes a rubber composition which includes at least one rubber, an ethylene/propylene/diene terpolymer, and a polyalkylene copolymer. The rubber may include one or more natural or synthetic rubbers, such as butadiene rubbers and isoprene rubbers. The ethylene/propylene/diene terpolymer preferably has an ethylene content of at least 60%. The polyalkylene copolymer may be a copolymer of a polyalkylene and an α-olefin, which is formed in a polymerization reaction involving a single site catalyst. The polyalkylene copolymer preferably has a high degree of crystallinity, being preferably at least about 90% by weight ethylene, with a melting point in the range of 80° C.–120° C. The presence of such a copolymer in the rubber composition markedly increases the resistance to crack growth and formation of cracks in the tire sidewall.

    摘要翻译: 适用于形成轮胎侧壁的组合物包括橡胶组合物,其包括至少一种橡胶,乙烯/丙烯/二烯三元共聚物和聚亚烷基共聚物。 橡胶可以包括一种或多种天然或合成橡胶,例如丁二烯橡胶和异戊二烯橡胶。 乙烯/丙烯/二烯三元共聚物优选具有至少60%的乙烯含量。 聚亚烷基共聚物可以是在涉及单位点催化剂的聚合反应中形成的聚亚烷基和α-烯烃的共聚物。 聚亚烷基共聚物优选具有高结晶度,优选至少约90重量%的乙烯,熔点在80℃-120℃的范围内。这种共聚物在橡胶组合物中的存在显着 增加了轮胎侧壁中裂纹扩展的阻力和裂纹的形成。

    Polymer compositions with improved cold flow
    7.
    发明授权
    Polymer compositions with improved cold flow 有权
    具有改善冷流的聚合物组合物

    公开(公告)号:US08673998B2

    公开(公告)日:2014-03-18

    申请号:US13240466

    申请日:2011-09-22

    IPC分类号: C08L47/00

    摘要: A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent; introducing a cold-flow inhibitor with the polymer cement, where the cold-flow inhibitor is selected from the group consisting of vicinal diamides, vicinal diureas and vicinal amide-ureas; and isolating at least a portion of the polymer and the cold-flow inhibitor from the solvent to provide a polymeric composition including the polymer and the cold-flow inhibitor.

    摘要翻译: 一种制备聚合物组合物的方法,所述方法包括提供包含聚合物和溶剂的聚合物粘合剂; 在聚合物粘合剂中引入冷流阻止剂,其中冷流阻抑剂选自邻位二酰胺,邻位二脲和邻氨基脲; 并从溶剂中分离聚合物和冷流阻抑剂的至少一部分,以提供包含聚合物和冷流阻止剂的聚合物组合物。

    POLYMER COMPOSITIONS WITH IMPROVED COLD FLOW
    8.
    发明申请
    POLYMER COMPOSITIONS WITH IMPROVED COLD FLOW 有权
    具有改进的冷流的聚合物组合物

    公开(公告)号:US20120071583A1

    公开(公告)日:2012-03-22

    申请号:US13240466

    申请日:2011-09-22

    IPC分类号: C08L47/00 C08K5/21 C08K5/20

    摘要: A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent; introducing a cold-flow inhibitor with the polymer cement, where the cold-flow inhibitor is selected from the group consisting of vicinal diamides, vicinal diureas and vicinal amide-ureas; and isolating at least a portion of the polymer and the cold-flow inhibitor from the solvent to provide a polymeric composition including the polymer and the cold-flow inhibitor.

    摘要翻译: 一种制备聚合物组合物的方法,所述方法包括提供包含聚合物和溶剂的聚合物粘合剂; 在聚合物粘合剂中引入冷流阻止剂,其中冷流阻抑剂选自邻位二酰胺,邻位二脲和邻氨基脲; 并从溶剂中分离聚合物和冷流阻抑剂的至少一部分,以提供包含聚合物和冷流阻止剂的聚合物组合物。

    PROCESS FOR PRODUCTION OF MODIFIED CONJUGATED DIENE POLYMERS, MODIFIED CONJUGATED DIENE POLYMERS PRODUCED BY THE PROCESS, RUBBER COMPOSITIONS, AND TIRES
    10.
    发明申请
    PROCESS FOR PRODUCTION OF MODIFIED CONJUGATED DIENE POLYMERS, MODIFIED CONJUGATED DIENE POLYMERS PRODUCED BY THE PROCESS, RUBBER COMPOSITIONS, AND TIRES 有权
    生产改性共轭二烯聚合物的方法,由工艺生产的改性的共混二烯聚合物,橡胶组合物和轮胎

    公开(公告)号:US20100016496A1

    公开(公告)日:2010-01-21

    申请号:US12446799

    申请日:2007-10-25

    IPC分类号: C08L83/04 C08G77/08

    摘要: The invention provides a process for producing a modified conjugated diene based polymer which attains favorable interaction between a rubber component and carbon black and/or silica, thereby improving dispersibility of the fillers, and which exhibits excellent properties such as heat-buildup-suppressing performance, fracture characteristics, and wear resistance; a modified conjugated diene based polymer produced through the process; a rubber composition containing the diene polymer; and a tire produced from the rubber composition and exhibiting the above properties. The process for producing a modified conjugated diene based polymer includes a step (a) of reacting a silicon compound with a conjugated diene based polymer having an active end so that the reaction takes place at the active end, the silicon compound having a protected primary amino group in the molecule thereof and a bi-functional silicon atom to which a hydrocarbyloxy group and a reactive group are bonded, to thereby modify the active end, and a step (b) of performing condensation reaction which involves the compound having a bi-functional silicon atom, in the presence of a titanium compound serving as a titanium-based condensation-accelerating agent.

    摘要翻译: 本发明提供了一种制备改性共轭二烯系聚合物的方法,其在橡胶组分与炭黑和/或二氧化硅之间具有良好的相互作用,从而提高填料的分散性,并且具有优异的性能如发热抑制性能, 断裂特性和耐磨性; 通过该方法制备的改性共轭二烯基聚合物; 含有二烯聚合物的橡胶组合物; 以及由橡胶组合物制成并具有上述特性的轮胎。 改性共轭二烯系聚合物的制造方法包括使硅化合物与具有活性末端的共轭二烯系聚合物反应的步骤(a),使得反应在活性末端进行,具有被保护的伯氨基 在其分子中具有烃氧基和反应性基团键合的双功能硅原子,从而改变活性末端,以及进行缩合反应的步骤(b),其涉及具有双官能团的化合物 硅原子,在用作钛基缩合促进剂的钛化合物的存在下。